"Power Spectrum IEC 1/1-Oct Mag - dB SPL "
      "Hz"      "Data"
        16,       -200
      31.5,   55.62882
        63,   53.08506
       125,     48.459
       250,   39.38124
       500,    52.3031
      1000,   50.80695
      2000,   51.50677
      4000,   51.55977
      8000,   32.90247
     16000,    22.1913